In response header Content-encoding: gzip is present, but in request header Accept-encoding: gzip, deflate is missing

seemaA Published at Dev

seemaA

In request header Accept-encoding: gzip, deflate, is missing, but in response header Content-encoding: gzip is present. does it cause compression failed. if yes, how to avoid it??

Request URL: http://something.com/something.js

Request Method: GET

Status Code: 200 OK 200 OK

Request Headers

Accept:  */*
Referer:  somthing.comsomthing.aspx
User-Agent:  Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/38.0.2125.111 Safari/537.36
X-DevTools-Emulate-Network-Conditions-Client-Id:  2D3ED9B5-95BD-4984-9EEE-405C2889F11E

Response Headers

Accept-Ranges:  bytes
Content-Encoding:  gzip
Content-Length:  884
Content-Type:  application/x-javascript
Date:  Tue, 28 Oct 2014 11:09:13 GMT
ETag:  "0ac99ce3e9fcf1:0"
Last-Modified:  Mon, 14 Jul 2014 08:37:12 GMT
Server:  Microsoft-IIS/8.0
Vary:  Accept-Encoding
X-Powered-By:  ASP.NET

Jeroen Mostert

From RFC 7231:

A request without an Accept-Encoding header field implies that the user agent has no preferences regarding content-codings. Although this allows the server to use any content-coding in a response, it does not imply that the user agent will be able to correctly process all encodings.

In short: if you specify no Accept-Encoding, it's legal (though ill-advised) for the server to send you compressed content. There doesn't appear to be a solid, reliable way to tell a web server that it should definitely not compress. You can try Accept-Encoding: *;q=0 or Accept-Encoding: identity, but support for this is not universal across web servers, and proxies can mess things up as well.

In the end you are probably better off with simply handling compressed content if it comes back as such -- there is no good reason for a client to not support compression and libraries for this are freely available.

Collected from the Internet

Please contact [email protected] to delete if infringement.

edited at2021-03-23

Comments

0 comments

Missing content-encoding in Response Header for Request headers with accept-encoding: gzip, deflate, br (in that precise order) for HTTPS Requests

is there any built in filter in istio or in spring webflux handling header "Content-Encoding: deflate" to decompress the request body

TOP Ranking

Article

In response header Content-encoding: gzip is present, but in request header Accept-encoding: gzip, deflate is missing

In response header Content-encoding: gzip is present, but in request header Accept-encoding: gzip, deflate is missing

Loopback Error: connect ECONNREFUSED 127.0.0.1:3306 (MAMP)

Can't pre-populate phone number and message body in SMS link on iPhones when SMS app is not running in the background

pump.io port in URL

How to import an asset in swift using Bundle.main.path() in a react-native native module

Failed to listen on localhost:8000 (reason: Cannot assign requested address)

Spring Boot JPA PostgreSQL Web App - Internal Authentication Error

Emulator wrong screen resolution in Android Studio 1.3

3D Touch Peek Swipe Like Mail

Double spacing in rmarkdown pdf

Svchost high CPU from Microsoft.BingWeather app errors

How to how increase/decrease compared to adjacent cell

Using Response.Redirect with Friendly URLS in ASP.NET

java.lang.NullPointerException: Cannot read the array length because "<local3>" is null

BigQuery - concatenate ignoring NULL

How to fix "pickle_module.load(f, **pickle_load_args) _pickle.UnpicklingError: invalid load key, '<'" using YOLOv3?

ngClass error (Can't bind ngClass since it isn't a known property of div) in Angular 11.0.3

Can a 32-bit antivirus program protect you from 64-bit threats

Make a B+ Tree concurrent thread safe

Bootstrap 5 Static Modal Still Closes when I Click Outside

Vector input in shiny R and then use it

Assembly definition can't resolve namespaces from external packages